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A109212 as a simple table

na(n)
120
222
318
418
519
619
719
822
922
1022
1120
1219
1321
1421
1521
1622
1725
1822
1924
2023
2124
2224
2323
2423
2525
2624
2726
2825
2925
3026
3127
3227
3326
3429
3529
3626
3727
3826
3926
4025
4124
4221
4321
4420
4519
4620
4720
4820
4920
5020
5120
5220
5319
5421
5524
5623
5723
5823
5923
6022
6121
6223
6323
6425
6526
6626
6725
6826
6926

[20,22,18,18,19,19,19,22,22,22,20,19,21,21,21,22,
 25,22,24,23,24,24,23,23,25,24,26,25,25,26,27,27,
 26,29,29,26,27,26,26,25,24,21,21,20,19,20,20,20,
 20,20,20,20,19,21,24,23,23,23,23,22,21,23,23,25,
 26,26,25,26,26]